<template>
  <!--本文件由FirstUI授权予广东即见即得数字科技有限公司（会员ID： 2 5 44，营业执照号：91  44060  5  M AC 0Y 3   J   7 0 Y）专用，请尊重知识产权，勿私下传播，违者追究法律责任。-->
  <view
    class="fui-radio__input"
    :class="{
      'fui-radio__disabled': disabled,
      'fui-radio__color': !getColor && val && !isCheckMark,
    }"
    :style="{
      backgroundColor: getBackgroundColor(val, isCheckMark),
      borderColor: getBorderColor(val, isCheckMark),
      zoom: isNvue ? 1 : scaleRatio,
      transform: `scale(${isNvue ? scaleRatio : 1})`,
      borderRadius: borderRadius,
    }"
    @tap.stop="radioChange"
  >
    <view
      class="fui-check__mark"
      :style="{
        borderBottomColor: checkMarkColor,
        borderRightColor: checkMarkColor,
      }"
      v-if="val"
    ></view>
    <radio
      class="fui-radio__hidden"
      style="opacity: 0; position: absolute"
      :color="getColor"
      :disabled="disabled"
      :value="value"
      :checked="val"
    ></radio>
  </view>
</template>

<script>
export default {
	name: "fui-radio",
	emits: ['change'],
	options: {
		virtualHost: true
	},
	props: {
		value: {
			type: String,
			default: ''
		},
		checked: {
			type: Boolean,
			default: false
		},
		disabled: {
			type: Boolean,
			default: false
		},
		//radio选中背景颜色
		color: {
			type: String,
			default: ''
		},
		//radio未选中时边框颜色
		borderColor: {
			type: String,
			default: '#ccc'
		},
		borderRadius: {
			type: String,
			// #ifdef APP-NVUE
			default: '40rpx'
			// #endif
			// #ifndef APP-NVUE
			default: '50%'
			// #endif
		},
		//是否只展示对号，无边框背景
		isCheckMark: {
			type: Boolean,
			default: false
		},
		//对号颜色
		checkMarkColor: {
			type: String,
			default: '#fff'
		},
		scaleRatio: {
			type: [Number, String],
			default: 1
		}
	},
	created() {
		this.val = this.checked;
		this.group = this.getParent()
		if (this.group) {
			this.group.childrens.push(this);
			if (this.group.value) {
				this.val = this.value === this.group.value
			}
			// #ifdef VUE3
			if (this.group.modelValue) {
				this.val = this.value === this.group.modelValue
			}
			// #endif
		}
		this.label = this.getParent('fui-label')
		if (this.label) {
			this.label.childrens.push(this);
		}
	},
	watch: {
		checked(newVal) {
			this.val = newVal;
		},
		val(newVal) {
			if (newVal && this.group) {
				this.group.changeValue(this.value, this);
			}
		}
	},
	computed: {
		getColor() {
			let color = this.color;
			// #ifdef APP-NVUE
			if (!color || color === true) {
				const app = uni && uni.$fui && uni.$fui.color;
				color = (app && app.primary) || '#465CFF';
			}
			// #endif
			return color;
		}
	},
	data() {
		let isNvue = false;
		// #ifdef APP-NVUE
		isNvue = true;
		// #endif
		return {
			val: false,
			isNvue: isNvue
		};
	},
	methods: {
		getBackgroundColor(val, isCheckMark) {
			let color = val ? this.getColor : '#fff'
			if (isCheckMark) {
				color = 'transparent'
			}
			return color;
		},
		getBorderColor(val, isCheckMark) {
			let color = val ? this.getColor : this.borderColor;
			if (isCheckMark) {
				color = 'transparent'
			}
			return color;
		},
		radioChange(e) {
			if (this.disabled || this.val) return;
			this.val = true;
			this.$emit('change', {
				checked: this.val,
				value: this.value
			})
		},
		getParent(name = 'fui-radio-group') {
			let parent = this.$parent;
			let parentName = parent.$options.name;
			while (parentName !== name) {
				parent = parent.$parent;
				if (!parent) return false;
				parentName = parent.$options.name;
			}
			return parent;
		},
		labelClick() {
			this.radioChange()
		}
	}
}
</script>

<style scoped lang="scss">
.fui-radio__input {
  font-size: 0;
  color: rgba(0, 0, 0, 0);
  width: 40rpx;
  height: 40rpx;
  border-width: 1px;
  border-style: solid;
  /* #ifdef APP-NVUE */
  border-radius: 40rpx;
  /* #endif */
  /* #ifndef APP-NVUE */
  border-radius: 50%;
  display: inline-flex;
  box-sizing: border-box;
  vertical-align: top;
  flex-shrink: 0;
  /* #endif */
  flex-direction: row;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* #ifndef APP-NVUE */
.fui-radio__color {
  background: $subject-color !important;
  border-color: $subject-color !important;
}

/* #endif */

.fui-check__mark {
  width: 20rpx;
  height: 40rpx;
  border-bottom-style: solid;
  border-bottom-width: 3px;
  border-bottom-color: #ffffff;
  border-right-style: solid;
  border-right-width: 3px;
  border-right-color: #ffffff;
  /* #ifndef APP-NVUE */
  box-sizing: border-box;
  transform: rotate(45deg) scale(0.5) translateZ(0);
  /* #endif */
  /* #ifdef APP-NVUE */
  transform: rotate(45deg) scale(0.5);
  /* #endif */
  transform-origin: 54% 48%;
}

.fui-radio__hidden {
  /* #ifndef APP-NVUE */
  width: 100%;
  height: 100%;
  border: 0 none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  pointer-events: none;
  /* #endif */
  /* #ifdef APP-NVUE */
  width: 100wx;
  height: 100wx;
  border-width: 0;
  /* #endif */
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  z-index: 2;
}

.fui-radio__disabled {
  opacity: 0.6;
}
</style>
